Company Filing History:
Years Active: 2019-2024
Title: Norbert Hettel: Innovator in Drive Systems
Introduction
Norbert Hettel is a notable inventor based in Au am Rhein, Germany. He has made significant contributions to the field of drive systems, holding a total of 2 patents. His work focuses on innovative methods and devices that enhance the efficiency and functionality of electric motors and rectifiers.
Latest Patents
Hettel's latest patents include a drive system with an inverter and electric motor, as well as a method for operating a drive system. In this drive system, the electric motor is powered from the AC-voltage-side terminal of the inverter. A first series circuit, which includes a brake resistor and a first controllable semiconductor switch, is connected at the DC-voltage-side terminal of the inverter. Additionally, a second series circuit, which includes an impedance and a controllable second semiconductor switch, is connected in parallel with the first series circuit. This innovative design allows for improved control and efficiency in electric motor operations.
Another significant patent involves a device for operating a rectifier, particularly a semi-controlled rectifier bridge, along with a method for operating a rectifier. In this device, the rectifier is supplied from system phases, specifically from a three-phase AC voltage system, and it provides a unipolar voltage on the output side. The rectifier includes controllable switches, such as semiconductor switches like thyristors, with each system phase supplying a respective current source. The current generated is utilized as a trigger signal for the controllable switch allocated to the respective system phase, depending on the state of a controllable switch unit.
Career Highlights
Norbert Hettel is currently associated with Sew-Eurodrive GmbH & Co. KG, where he continues to innovate in the field of drive systems. His expertise and contributions have made a significant impact on the industry.
Collaborations
Hettel has collaborated with notable coworkers, including Alexander Kolbert and Hans Jürgen Kollar, further enhancing the innovative environment in which he works.
Conclusion
Norbert Hettel's contributions to drive systems and rectifier technology demonstrate his commitment to innovation and excellence in engineering. His patents reflect a deep understanding of electric motor operations and control systems, positioning him as a key figure in his field.